Drilling and Commissioning of 01 nos. bore well all complete near Hanuman mandir at Lohandia rehab site under Rajmahal Area.

Item Description/ Heading

Boring/drilling bore well of 300 mm dia for casing/strainer pipe by suitable method prescribed in IS: 2800 (part-I), including collecting samples from different strate, preparing and submitting strata chart/bore log, inclduing hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, upto 90 metre depth below ground level.

Boring/drilling bore well of 300 mm dia for casing/strainer pipe by suitable method prescribed in IS: 2800 (part-I), including collecting samples from different strate, preparing and submitting strata chart/bore log, inclduing hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, beyond 90 metre & upto 150 metre depth below ground level.

Boring/drilling bore well of 300 mm dia for casing/strainer pipe by suitable method prescribed in IS: 2800 (part-I), including collecting samples from different strate, preparing and submitting strata chart/bore log, inclduing hire & running charges of all equipments, tools, plants & machineries required for the job, all complete as per direction of Engineer-in-charge, beyond 150 metre & upto 210 metre depth below ground level.

Development of tube well in accordance with IS: 2800 (part I) and IS: 11189 to establish maximum rate of usable water yield with out sand content (beyond premissible limit), with required capacity air compressor, running the compressor for required time till well is fully developed, measuring yield of well by "V" notch method or any other approved method measuring static level & draw down etc. by step draw down method, collecting water sampless & getting tested in approved laboratory, I/C disinfection of tubewell all complete, including hire & labour charges of air compressor, tools & accessories etc. all as per requirement and direction of Engineer-in-charge.

Supplying, assembling, lowering and fixing in vertical position in bore well, ERW (Electric Resistance Welded) FE 410 plain slotted (having slot of size 1.6/3.2 mm) mild steel threaded and socketed/ plain bevel ended pipe (type A) of required dia, conforming to IS: 8110, of reputed and approved make, having wall thickness not less than 5.40 mm, including painted with outside surface with two coats of anticorrosive bitumestic paint of approved brand and manufacture, includin hire & labour charges, fittings & accessories, all complete, for all depths, as per direction of Engineer-in-charge. 200mm norminal size dia.

Providing and fixing suitable size threaded mild steel cap or spot welded plate to the top of bore well housing/casing pipe, removable as per requirement, all complete for borewell of: 200mm dia.

Providing and fixing M.S clamp of required dia to the top of casing/housing pipe of tubewell as per IS: 2800 (part-I), including necessary bolts & nuts of required size complete. 200mm clamp.

Supplying of Nylon rope 25mm dia.

Supplying G.I pipes 50 mm dia nominal dia including fittings.

Lowering and commissioning of 7.5 HP Submersible pump in deep borewell with GI/ CPVC/PVC pipe including all accessories etc. complete inlcuding cost of labour but excluding cost of material and fittings (cost of pump, cable, PVC Pipe, Contol panel, hanging arrangement like wire/rope to be paid separately)

Supplying of 7.5 HP Submersible pump motor set (three phase 415 volt, 12 stage, speed of pump-2880 rpm) with Glass Noryl Polypropin impeller, stainless steel pump shaft, head-110 metre.Suction casing-cast iron and of approved make as per direction of EIC.

Supplying of three phase/ 415 volt Starter Control Panel of approved make suitable for 7.5 HP submersible pump consisting of volt metre, ammeter, on/off switch, starter, single phase preventer, overload protection, water level guard, dry run protection, under current protection all complete as per direction of EIC.

Supplying of PVC insulated and PVC sheathed flat submersible cable with copper conductor, 3 core 10 sq.mm as per direction of EIC.

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc.External work: 50 mm dia nominal bore

Providing and fixing G.I. pipes complete with G.I. fittings including trenching and refilling etc.External work: 15 mm dia nominal bore

Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete (New work) :50 mm nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete : 50 to 80 mm nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :50 mm nominal bore

Providing and fixing brass bib cock of approved quality :15 mm nominal bore

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:1½:3 (1 Cement: 1½ coarse sand: 3 graded stone aggregate 20 mm nominal size)

Total impact of GST for the purpose of CTC

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